渗流与应力耦合作用下裂隙岩体稳定性分析  

Research on the Coupling of Seepage and Stress in Fractured Rock Masses

作　　者：饶晨曦 胡斌[1] 刘飞[1] 张腾[1] 谭钦文[1] 

机构地区：[1]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《人民黄河》2015年第4期109-111,共3页Yellow River

基　　金：国家自然科学基金面上项目(41172281);国家"973"计划项目(2011CB710604);中央高校基本科研业务费专项(摇篮人才计划CUGL100413;特色学科团队CUG090104)

摘　　要：利用离散元软件UDEC分析了不同水位下裂隙岩体边坡内的渗流情况及岩体边坡稳定性。结果表明,水头越高,渗流对边坡的影响范围和影响程度越大,在15 m水头时,边坡产生较大变形且发生失稳破坏。借助对边坡关键点的变形历时曲线和渗流计算结果,研究了边坡在渗流情况下的破坏模式:边坡整体产生沿坡脚处所在结构面的剪切滑动,边坡后缘处所在的结构面产生拉裂破坏,坡面中部岩块有向临空面坍塌的趋势。Rock slope stability of rock mass slope considering seepage in different water levels was analyzed by using discrete element soft-ware UDEC. The results show that with higher water level,the scope and degree of seepage on the slope will be larger and higher. When wa-ter head is 15 m,slope leads to large deformation and destabilization. With the help of key points deformation duration curve of the slope and calculation results,seepage failure mode of slope in the case was studied:the shear sliding generated along the structure face at the toe of the slope,the structure surfaces at the trailing edge of slope produced tensile failure and the middle part of slope rock had collapsed trend toward the free surface.

关 键 词：裂隙岩体 稳定性分析 渗流 离散元 

分 类 号：TD82[矿业工程—煤矿开采]